12879891 is an odd 8-digits composite number following 12879890
and preceding 12879892 . In scientific notation, it is written as 1.2879891 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors.
There are 8133696 positive integers (up to 12879891) that are relatively prime to 12879891.
12879891 has 12 divisors, whose sum is 15233400
The reverse of 12879891 is 19897821
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twelve million eight hundred seventy-nine thousand eight hundred ninety-one
Scientific notation
1.2879891 × 10^7
Engineering notation
1.2879891 × 10^6
Prime Factorization
9 × 9 × 19 × 8369
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1431099
Product of the distinct prime numbers
The prime factorization of 12879891 is 9 × 9 × 19 × 8369.
Since it has a total of 4 prime factors.
6 , 3 , 13 , 42 , 448 , 620 , 5995 , 3094 , 73380 , 35071 , 308411 , 472517 , 5883408 , 1119425 , 12671625 , 48573328 , 223369978 , 430074616 , 2156911769 , 780025910
n×2
25759782
n×3
38639673
n×4
51519564
n×5
64399455
n÷2
6439945.5
n÷3
4293297
n÷3
3219972.75
n÷5
2575978.2
n2
165891592171881
n3
2.1366656249903E+21
n4
2.7520020353322E+28
n5
3.5445486246856E+35
2 √n
3588.8565031219
3 √n
234.40708232822
4 √n
59.907065552586
5 √n
26.423019029478
1 , 9 , 19 , 81 , 171 , 1539 , 8369 , 75321 , 159011 , 677889 , 1431099 , 12879891
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12879890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12879891 can be divided by 12 positive divisors.
The sum of these divisors (counting 12879891) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
110001001000100000010011
3
Ternary
220020100220000
4
Quaternary
301020200103
5
Quinary
11244124031
6
Senary
1140021043
8
Octal
61104023
10
Decimal
12879891
12
Duodecimal
4391783
16
Hexadecimal
c48813
20
Vigesimal
409jeb
36
Base36
7o26r
md5
70cbf8f6322d0ba147a836849341792a
sha1
9a76d05c1e159e565c274a16388d9232bf8e4069
sha256
97d6a9a047092778f9301f4a8e8571b18e40e3a15a982d2e2ba722e71ba05ae2
sha512
1a3f7e484bf185fb0285720b935990df9435a2fef3c5792c72460d7252db15a40fd42f55ee95a17700cb7f047fa08d7bf362ec7be1836e127173ae16a4fb442a
ripemd-160
5577080d1026d4c6d330661585baf4ad6130dfd7
Diameter
25759782
Circumference
80926741.889275
Area
5.211638072595E+14
Volume
8.9500440408631E+21
Surface area
2.084655229038E+15
Circumference
80926741.889275
Perimeter
51519564
Area
165891592171881
Diagonal
18214916.534087
Surface area
995349553031286
Volume
2.1366656249903E+21
Space diagonal
22308625.607949
Perimeter
38639673
Area
71833166547548
Altitude
11154312.803975
Surface area
71833166547548
Volume
2.518084587598E+20
Height
6071638.8446957